NASA lost seven of its own on the morning of Jan. 28, 1986, when a booster engine failed, causing the Shuttle Challenger to break apart just 73 seconds after launch.
In this photo from Jan. 9, 1986, the Challenger crew takes a break during countdown training at NASA’s Kennedy Space Center. From left to right are Teacher-in-Space Christa McAuliffe and astronauts Gregory Jarvis, Judith Resnik, Mission Commander Dick Scobee, astronaut Ronald McNair, pilot Mike Smith, and astronaut Ellison Onizuka.
Learn more about Challenger and NASA’s Space Shuttle Program.
Image Credit: NASA